package com.atguigu.gulimall.coupon.service.impl;

import com.atguigu.gulimall.coupon.entity.SeckillSessionEntity;
import com.atguigu.gulimall.coupon.entity.SeckillSkuRelationEntity;
import com.atguigu.gulimall.coupon.service.SeckillSessionService;
import com.atguigu.gulimall.coupon.service.SeckillSkuRelationService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.format.DateTimeFormatter;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;

import com.atguigu.gulimall.coupon.dao.SeckillSessionDao;
import sun.util.resources.LocaleData;


@Service("seckillSessionService")
public class SeckillSessionServiceImpl extends ServiceImpl<SeckillSessionDao, SeckillSessionEntity> implements SeckillSessionService {


    @Autowired
    SeckillSkuRelationService seckillSkuRelationService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SeckillSessionEntity> page = this.page(
                new Query<SeckillSessionEntity>().getPage(params),
                new QueryWrapper<SeckillSessionEntity>()
        );

        return new PageUtils(page);
    }

    @Override
    public List<SeckillSessionEntity> getLates3DaySession() {

//查询出最近三天的活动
        List<SeckillSessionEntity> list = this.list(new QueryWrapper<SeckillSessionEntity>().between("start_time", startTime(), endTime()));
//查询出活动里面的上架的秒杀的商品列表
        if(list!=null && list.size()>0){
            List<SeckillSessionEntity> collect = list.stream().map(session -> {
                Long id = session.getId();
                List<SeckillSkuRelationEntity> relationEntities = seckillSkuRelationService.list(new QueryWrapper<SeckillSkuRelationEntity>().eq("promotion_session_id", id));

                session.setRelationSkus(relationEntities);

                return session;
            }).collect(Collectors.toList());
            return collect;
        }

        return null;
    }


    public String startTime(){
        LocalDate now =LocalDate.now();
        LocalTime min =LocalTime.MIN;
        LocalDateTime start =LocalDateTime.of(now,min);

        String format =start.format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss"));

        return format;
    }

    public String endTime(){
        LocalDate now =LocalDate.now();
      LocalDate localDate=now.plusDays(2);
        LocalDateTime of =LocalDateTime.of(localDate,LocalTime.MAX);
        String format =of.format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss"));
        return format;
    }


}
